Finding the Fourth Proportional to 72,604.68, 108,906.62 and 28,262.28

Step by Step Solution

1. Step 1: Write the proportion equation
   72,604.68 : 108,906.62 = 28,262.28 : x
2. Step 2: Convert to fraction form
   72,604.68/108,906.62 = 28,262.28/x
3. Step 3: Cross multiply
   72,604.68x = 108,906.62 × 28,262.28
4. Step 4: Simplify right side
   72,604.68x = 3,077,949,388.29
5. Step 5: Solve for x
   x = 3,077,949,388.29/72,604.68
6. Step 6: Final answer
   x = 42,393.26